diff --git a/src/ZenGlanceManager.mjs b/src/ZenGlanceManager.mjs
index 668559a..2d840bf 100644
--- a/src/ZenGlanceManager.mjs
+++ b/src/ZenGlanceManager.mjs
@@ -66,6 +66,8 @@
 
     onKeyDown(event) {
       if (event.key === "Escape" && this.#currentBrowser) {
+        event.preventDefault();
+        event.stopPropagation();
         this.closeGlance();
       }
     }